~eliasnaur/gio-example

ref: 1ad8d13d0f99c508d3a2528dfe349f3313acc7c5 gio-example/7gui/temperature d---------
all: bump gio version

Update 7gui examples to use layout.Spacer.

Signed-off-by: Egon Elbre <egonelbre@gmail.com>
7gui/temperature: two-way binding

Signed-off-by: Egon Elbre <egonelbre@gmail.com>